CVE-2025-20072: mattermost mobile — Fix

Description

Mattermost Mobile versions <= 2.22.0 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the mobile via crafted malicious input.

Is your site exposed to CVE-2025-20072?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-704 CWE-704

Affected Products

Vendor	Product	Versions
mattermost	mattermost_mobile	< 2.23.0

References

Advisories & Patches

https://mattermost.com/security-updates

Frequently Asked Questions

What is CVE-2025-20072? +

Mattermost Mobile versions <= 2.22.0 fail to properly validate the style of proto supplied to an action's style in post.props.attachments, which allows an attacker to crash the mobile via crafted malicious input. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-20072? +

CVE-2025-20072 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-20072? +

CVE-2025-20072 affects products from mattermost, specifically: mattermost_mobile. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-20072? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-54429

Polkadot Frontier is an Ethereum and EVM compatibility layer for Polkadot and Substrate. There are various account address types in …

CVE-2010-20115

Arcane Software’s Vermillion FTP Daemon (vftpd) versions up to and including 1.31 contains a memory corruption vulnerability triggered by a …

CVE-2025-41646 9.8

An unauthorized remote attacker can bypass the authentication of the affected software package by misusing an incorrect type conversion. This …

CVE-2024-5436 9.8

Type confusion in Snapchat LensCore could lead to denial of service or arbitrary code execution prior to version 12.88. We …

CVE-2025-41648 9.8

An unauthenticated remote attacker can bypass the login to the web application of the affected devices making it possible to …

CVE-2025-62494 8.8

A type confusion vulnerability exists in the handling of the string addition (+) operation within the QuickJS engine. * The …

CVE-2025-20072